Änderungen

* Teaching Mathematical Proofs that Rely on Ideas from Physics. Canadian Journal of Science, Mathematics and Technology Education 1 (2001), Heft 2, 183 - 192 (mit Gila Hanna, Ysbrand DeBruyn und Dennis Lomas)  

* Teaching Mathematical Proofs that Rely on Ideas from Physics. Canadian Journal of Science, Mathematics and Technology Education 1 (2001), Heft 2, 183 - 192 (mit Gila Hanna, Ysbrand DeBruyn und Dennis Lomas)  

* Using arguments from physics to promote understanding of mathematical proofs. In: Orit Zaslavsky (Hrsg.), Proceedings of the 23rd Conference of the International Group for the Psychology of Mathematics Education, Haifa 1999, vol. 3, 73-80 (mit G. Hanna)  

* Using arguments from physics to promote understanding of mathematical proofs. In: Orit Zaslavsky (Hrsg.), Proceedings of the 23rd Conference of the International Group for the Psychology of Mathematics Education, Haifa 1999, vol. 3, 73-80 (mit G. Hanna)  

* Proof and proving. In: Bishop, A.; Clements, K.; Keitel, C.; Kilpatrick, J.; Laborde, C.: International handbook of mathematics education, Dordrecht: Kluwer 1996, 877 - 908 (m. G. Hanna)  

* Proof and proving. In: Bishop, A.; Clements, K.; Keitel, C.; Kilpatrick, J.; [[Colette Laborde|Laborde, C.]]: International handbook of mathematics education, Dordrecht: Kluwer 1996, 877 - 908 (m. G. Hanna)  

* The theory and practice of proof. Proceedings of the 7th International Congress on Mathematical Education. Laval: Les Presses de l'Université Laval, 1994, 253-256 (m. G. Hanna)  

* The theory and practice of proof. Proceedings of the 7th International Congress on Mathematical Education. Laval: Les Presses de l'Université Laval, 1994, 253-256 (m. G. Hanna)  

* Proof and Application. Educational Studies in Mathematics 24 (1993), H. 4, 421 - 438 (mit G. Hanna)  

* Proof and Application. Educational Studies in Mathematics 24 (1993), H. 4, 421 - 438 (mit G. Hanna)